1 /* database.c -- database module.
2 Copyright (C) 2003, 2004
3 National Institute of Advanced Industrial Science and Technology (AIST)
4 Registration Number H15PRO112
6 This file is part of the m17n library.
8 The m17n library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public License
10 as published by the Free Software Foundation; either version 2.1 of
11 the License, or (at your option) any later version.
13 The m17n library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public
19 License along with the m17n library; if not, write to the Free
20 Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 @addtogroup m17nDatabase
25 @brief The m17n database and API for it.
27 The m17n library acquires various kinds of information
28 from data in the <i> m17n database</i> on demand. Application
29 programs can also add/load their original data to/from the m17n
30 database by setting the variable #mdatabase_dir to an
31 application-specific directory and storing data in it. Users can
32 overwrite those data by storing preferable data in the directory
33 specified by the environment variable "M17NDIR", or if it is not
34 set, in the directory "~/.m17n.d".
36 The m17n database contains multiple heterogeneous data, and each
37 data is identified by four tags; TAG0, TAG1, TAG2, TAG3. Each tag
40 TAG0 specifies the type of data stored in the database as below.
43 If TAG0 is #Mchar_table, the data is of the @e chartable @e
44 type and provides information about each character. In this case,
45 TAG1 specifies the type of the information and must be #Msymbol,
46 #Minteger, #Mstring, #Mtext, or #Mplist. TAG2 and TAG3 can be any
50 If TAG0 is #Mcharset, the data is of the @e charset @e type
51 and provides a decode/encode mapping table for a charset. In this
52 case, TAG1 must be a symbol representing a charset. TAG2 and TAG3
56 If TAG0 is neither #Mchar_table nor #Mcharset, the data is of
57 the @e plist @e type. See the documentation of the
58 mdatabase_load () function for the details.
59 In this case, TAG1, TAG2, and TAG3 can be any symbols.
61 The notation \<TAG0, TAG1, TAG2, TAG3\> means a data with those
64 Application programs first calls the mdatabase_find () function to
65 get a pointer to an object of the type #MDatabase. That object
66 holds information about the specified data. When it is
67 successfully returned, the mdatabase_load () function loads the
68 data. The implementation of the structure #MDatabase is
69 concealed from application programs.
73 @addtogroup m17nDatabase
74 @brief m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤È¤½¤ì¤Ë´Ø¤¹¤ë API.
76 m17n ¥é¥¤¥Ö¥é¥ê¤ÏɬÍפ˱þ¤¸¤ÆưŪ¤Ë @e m17n @e ¥Ç¡¼¥¿¥Ù¡¼¥¹
77 ¤«¤é¾ðÊó¤ò¼èÆÀ¤¹¤ë¡£¤Þ¤¿¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤â¡¢Æȼ«¤Î¥Ç¡¼¥¿¤ò
78 m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÄɲä·¡¢¤½¤ì¤òưŪ¤Ë¼èÆÀ¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
79 ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤¬Æȼ«¤Î¥Ç¡¼¥¿¤òÄɲᦼèÆÀ¤¹¤ë¤Ë¤Ï¡¢ÊÑ¿ô
80 #mdatabase_dir ¤Ë¤½¤Î¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¸ÇͤΥǥ£¥ì¥¯¥È¥ê¤ò¥»¥Ã¥È¤·¡¢
81 ¤½¤ÎÃæ¤Ë¥Ç¡¼¥¿¤ò³ÊǼ¤¹¤ë¡£¥æ¡¼¥¶¤¬¤½¤Î¥Ç¡¼¥¿¤ò¥ª¡¼¥Ð¡¼¥é¥¤¥È¤·¤¿¤¤
82 ¤È¤¤Ï¡¢´Ä¶ÊÑ¿ô "M17NDIR" ¤Ç»ØÄꤵ¤ì¤ë¥Ç¥£¥ì¥¯¥È¥ê¡Ê»ØÄꤵ¤ì¤Æ¤¤¤Ê
83 ¤¤¤È¤¤Ï "~/.m17n.d" ¤È¤¤¤¦¥Ç¥£¥ì¥¯¥È¥ê¡Ë¤ËÊ̤Υǡ¼¥¿¤òÃÖ¤¯¡£
86 ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤ÏÊ£¿ô¤Î¿Íͤʥǡ¼¥¿¤¬´Þ¤Þ¤ì¤Æ¤ª¤ê¡¢³Æ¥Ç¡¼¥¿¤Ï
87 TAG0, TAG1, TAG2, TAG3¡Ê¤¹¤Ù¤Æ¥·¥ó¥Ü¥ë¡Ë¤Î£´¤Ä¤Î¥¿¥°¤Ë¤è¤Ã¤Æ¼±Ê̤µ¤ì¤ë¡£
89 TAG0 ¤Ë¤è¤Ã¤Æ¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹Æâ¤Î¥Ç¡¼¥¿¤Î¥¿¥¤¥×¤Ï¼¡¤Î¤è¤¦¤Ë»ØÄꤵ¤ì¤ë¡£
92 TAG0 ¤¬ #Mchar_table ¤Ç¤¢¤ë¥Ç¡¼¥¿¤Ï @e chartable¥¿¥¤¥×
93 ¤È¸Æ¤Ð¤ì¡¢³Æʸ»ú¤Ë´Ø¤¹¤ë¾ðÊó¤òÄ󶡤¹¤ë¡£¤³¤Î¾ì¹ç
94 TAG1 ¤Ï¾ðÊó¤Î¼ïÎà¤ò»ØÄꤹ¤ë¥·¥ó¥Ü¥ë¤Ç¤¢¤ê¡¢#Msymbol, #Minteger, #Mstring,
95 #Mtext, #Mplist ¤Î¤¤¤º¤ì¤«¤Ç¤¢¤ë¡£TAG2 ¤È TAG3 ¤ÏǤ°Õ¤Î¥·¥ó¥Ü¥ë¤Ç¤è¤¤¡£
98 TAG0 ¤¬ #Mcharset ¤Ç¤¢¤ë¥Ç¡¼¥¿¤Ï @e charset¥¿¥¤¥×
99 ¤È¸Æ¤Ð¤ì¡¢Ê¸»ú¥»¥Ã¥ÈÍѤΥǥ³¡¼¥É¡¿¥¨¥ó¥³¡¼¥É¥Þ¥Ã¥×¤òÄ󶡤¹¤ë¡£¤³¤Î¾ì¹ç TAG1
100 ¤Ïʸ»ú¥»¥Ã¥È¤Î¥·¥ó¥Ü¥ë¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£TAG2 ¤È TAG3
101 ¤ÏǤ°Õ¤Î¥·¥ó¥Ü¥ë¤Ç¤è¤¤¡£
104 TAG0 ¤¬ #Mchar_table ¤Ç¤â #Mcharset ¤Ç¤â¤Ê¤¤¾ì¹ç¡¢¤½¤Î¥Ç¡¼¥¿¤Ï @e
105 plist¥¿¥¤¥× ¤Ç¤¢¤ë¡£¾ÜºÙ¤Ë´Ø¤·¤Æ¤Ï´Ø¿ô mdatabase_load ()
106 ¤ÎÀâÌÀ¤ò»²¾È¤Î¤³¤È¡£¤³¤Î¾ì¹ç TAG1¡¢TAG2¡¢TAG3 ¤ÏǤ°Õ¤Î¥·¥ó¥Ü¥ë¤Ç¤è¤¤¡£
108 ÆÃÄê¤Î¥¿¥°¤ò»ý¤Ä¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò \<TAG0, TAG1, TAG2, TAG3\>
111 ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤Ï¡¢¤Þ¤º´Ø¿ô mdatabase_find ()
112 ¤ò»È¤Ã¤Æ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë´Ø¤¹¤ë¾ðÊó¤òÊÝ»ý¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¡Ê#MDatabase
113 ·¿¡Ë¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÆÀ¤ë¡£¤½¤ì¤ËÀ®¸ù¤·¤¿¤é¡¢ mdatabase_load ()
114 ¤Ë¤è¤Ã¤Æ¼ÂºÝ¤Ë¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò¥í¡¼¥É¤¹¤ë¡£¹½Â¤ÂÎ #MDatabase
115 ¼«¿È¤¬¤É¤¦¼ÂÁõ¤µ¤ì¤Æ¤¤¤ë¤«¤Ï¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤«¤é¤Ï¸«¤¨¤Ê¤¤¡£
117 @latexonly \IPAlabel{database} @endlatexonly
122 #if !defined (FOR_DOXYGEN) || defined (DOXYGEN_INTERNAL_MODULE)
123 /*** @addtogroup m17nInternal
131 #include <sys/types.h>
132 #include <sys/stat.h>
140 #include "m17n-misc.h"
141 #include "internal.h"
143 #include "character.h"
145 #include "database.h"
149 /** The file containing a list of databases. */
150 #define MDB_DIR "mdb.dir"
151 /** Length of MDB_DIR. */
152 #define MDB_DIR_LEN 7
154 #define MAX_TIME(TIME1, TIME2) ((TIME1) >= (TIME2) ? (TIME1) : (TIME2))
156 #define GEN_PATH(path, dir, dir_len, file, file_len) \
157 (dir_len + file_len > PATH_MAX ? 0 \
158 : (memcpy (path, dir, dir_len), \
159 memcpy (path + dir_len, file, file_len), \
160 path[dir_len + file_len] = '\0', 1))
162 static MSymbol Masterisk;
164 /** Structure for a data in the m17n database. */
168 /** Tags to identify the data. <tag>[0] specifies the type of
169 database. If it is #Mchar_table, the type is @e chartable, if
170 it is #Mcharset, the type is @e charset, otherwise the type is
174 void *(*loader) (MSymbol *tags, void *extra_info);
176 /** The meaning of the value is dependent on <loader>. If <loader>
177 is load_database (), the value is a string of the file name that
178 contains the data. */
182 static MPlist *mdatabase__list;
185 read_number (char *buf, int *i)
194 while (c && isspace (c)) c = buf[idx++];
200 for (idx++, c = 0; (n = hex_mnemonic[(unsigned) buf[idx]]) < 16;
214 n = escape_mnemonic[c];
218 while (buf[idx] && buf[idx++] != '\'');
222 else if (hex_mnemonic[c] < 10)
227 while ((n = hex_mnemonic[(unsigned) buf[idx]]) < 10)
228 c = (c * 10) + n, idx++;
234 /** Load a data of type @c chartable from the file FD, and return the
235 newly created chartable. */
238 load_chartable (FILE *fp, MSymbol type)
246 MERROR (MERROR_DB, NULL);
248 table = mchartable (type, (type == Msymbol ? (void *) Mnil
249 : type == Minteger ? (void *) -1
256 for (len = 0; len < 1023 && (c = getc (fp)) != EOF && c != '\n'; len++)
259 if (hex_mnemonic[(unsigned) buf[0]] >= 10)
260 /* skip comment/invalid line */
263 from = read_number (buf, &i);
265 i++, to = read_number (buf, &i);
268 if (from < 0 || to < from)
271 while (buf[i] && isspace ((unsigned) buf[i])) i++;
278 /* VAL is a C-string. */
279 if (! (val = strdup (buf + i)))
280 MEMORY_FULL (MERROR_DB);
282 else if (type == Minteger)
284 /* VAL is an integer. */
290 n = read_number (buf, &i);
293 val = (void *) (n * positive);
295 else if (type == Mtext)
297 /* VAL is an M-text. */
300 mt = mconv_decode_buffer (Mcoding_utf_8,
301 (unsigned char *) (buf + i),
306 while ((c = read_number (buf, &i)) >= 0)
307 mt = mtext_cat_char (mt, c);
311 else if (type == Msymbol)
315 while (*p && ! isspace (*p))
317 if (*p == '\\' && p[1] != '\0')
319 memmove (p, p + 1, buf + len - (p + 1));
325 if (! strcmp (buf + i, "nil"))
328 val = (void *) msymbol (buf + i);
330 else if (type == Mplist)
332 val = (void *) mplist__from_string ((unsigned char *) buf + i,
339 mchartable_set (table, from, val);
341 mchartable_set_range (table, from, to, val);
346 M17N_OBJECT_UNREF (table);
347 MERROR (MERROR_DB, NULL);
351 /** Load a data of type @c charset from the file FD. */
354 load_charset (FILE *fp, MSymbol charset_name)
356 MCharset *charset = MCHARSET (charset_name);
365 MERROR (MERROR_DB, NULL);
366 size = (charset->code_range[15]
367 - (charset->min_code - charset->code_range_min_code));
368 MTABLE_MALLOC (decoder, size, MERROR_DB);
369 for (i = 0; i < size; i++)
371 encoder = mchartable (Minteger, (void *) MCHAR_INVALID_CODE);
373 while ((c = getc (fp)) != EOF)
375 unsigned code1, code2, c1, c2;
380 fgets (buf, 256, fp);
383 if (sscanf (buf, "0x%x-0x%x 0x%x", &code1, &code2, &c1) == 3)
385 idx1 = CODE_POINT_TO_INDEX (charset, code1);
388 idx2 = CODE_POINT_TO_INDEX (charset, code2);
391 c2 = c1 + (idx2 - idx1);
393 else if (sscanf (buf, "0x%x 0x%x", &code1, &c1) == 2)
395 idx1 = idx2 = CODE_POINT_TO_INDEX (charset, code1);
402 if (idx1 >= 0 && idx2 >= 0)
405 mchartable_set (encoder, c1, (void *) code1);
406 for (idx1++, c1++; idx1 <= idx2; idx1++, c1++)
408 code1 = INDEX_TO_CODE_POINT (charset, idx1);
410 mchartable_set (encoder, c1, (void *) code1);
420 M17N_OBJECT_UNREF (encoder);
424 mplist_add (plist, Mt, decoder);
425 mplist_add (plist, Mt, encoder);
430 gen_database_name (char *buf, MSymbol *tags)
434 strcpy (buf, msymbol_name (tags[0]));
435 for (i = 1; i < 4; i++)
438 strcat (buf, msymbol_name (tags[i]));
444 find_file (MDatabaseInfo *db_info, struct stat *buf)
447 char path[PATH_MAX + 1];
449 MPLIST_DO (plist, mdatabase__dir_list)
451 MDatabaseInfo *dir_info = MPLIST_VAL (plist);
453 if (dir_info->status != MDB_STATUS_DISABLED
454 && GEN_PATH (path, dir_info->filename, dir_info->len,
455 db_info->filename, db_info->len)
456 && stat (path, buf) == 0)
457 return strdup (path);
463 /* Return the absolute file name for DB_INFO->filename. If BUF is
464 non-NULL, store the result of `stat' call in it. It returns NULL
465 if no absolute file name was found. */
468 get_database_file (MDatabaseInfo *db_info, struct stat *buf)
470 if (db_info->status == MDB_STATUS_DISABLED)
472 if (db_info->absolute_filename)
475 stat (db_info->absolute_filename, buf);
479 struct stat stat_buf;
480 struct stat *statbuf = buf ? buf : &stat_buf;
482 db_info->absolute_filename = find_file (db_info, statbuf);
485 return db_info->absolute_filename;
489 load_database (MSymbol *tags, void *extra_info)
491 MDatabaseInfo *db_info = extra_info;
493 char *filename = get_database_file (db_info, NULL);
495 int mdebug_mask = MDEBUG_DATABASE;
498 MDEBUG_PRINT1 (" [DB] <%s>", gen_database_name (buf, tags));
499 if (! filename || ! (fp = fopen (filename, "r")))
502 MDEBUG_PRINT1 (" open fail: %s\n", filename);
504 MDEBUG_PRINT1 (" not found: %s\n", db_info->filename);
505 MERROR (MERROR_DB, NULL);
508 MDEBUG_PRINT1 (" from %s\n", filename);
510 if (tags[0] == Mchar_table)
511 value = load_chartable (fp, tags[1]);
512 else if (tags[0] == Mcharset)
513 value = load_charset (fp, tags[1]);
515 value = mplist__from_file (fp, NULL);
519 MERROR (MERROR_DB, NULL);
520 db_info->time = time (NULL);
525 /** Return a newly allocated MDatabaseInfo for DIRNAME. */
527 static MDatabaseInfo *
528 get_dir_info (char *dirname)
530 MDatabaseInfo *dir_info;
532 MSTRUCT_CALLOC (dir_info, MERROR_DB);
535 int len = strlen (dirname);
537 if (len + MDB_DIR_LEN < PATH_MAX)
539 MTABLE_MALLOC (dir_info->filename, len + 2, MERROR_DB);
540 memcpy (dir_info->filename, dirname, len + 1);
541 /* Append PATH_SEPARATOR if DIRNAME doesn't end with it. */
542 if (dir_info->filename[len - 1] != PATH_SEPARATOR)
544 dir_info->filename[len] = PATH_SEPARATOR;
545 dir_info->filename[++len] = '\0';
548 dir_info->status = MDB_STATUS_OUTDATED;
551 dir_info->status = MDB_STATUS_DISABLED;
554 dir_info->status = MDB_STATUS_DISABLED;
559 find_database (MSymbol tags[4])
564 if (! mdatabase__list)
566 for (i = 0, plist = mdatabase__list; i < 4; i++)
568 plist = mplist__assq (plist, tags[i]);
571 plist = MPLIST_PLIST (plist);
572 plist = MPLIST_NEXT (plist);
574 return MPLIST_VAL (plist);
578 free_db_info (MDatabaseInfo *db_info)
580 free (db_info->filename);
581 if (db_info->absolute_filename
582 && db_info->filename != db_info->absolute_filename)
583 free (db_info->absolute_filename);
588 check_version (MText *version)
590 char *verstr = (char *) MTEXT_DATA (version);
591 char *endp = verstr + mtext_nbytes (version);
595 ver[0] = ver[1] = ver[2] = 0;
596 for (i = 0; verstr < endp; verstr++)
605 if (! isdigit (*verstr))
607 ver[i] = ver[i] * 10 + (*verstr - '0');
609 return (ver[0] < M17NLIB_MAJOR_VERSION
610 || (ver[0] == M17NLIB_MAJOR_VERSION
611 && (ver[1] < M17NLIB_MINOR_VERSION
612 || (ver[1] == M17NLIB_MINOR_VERSION
613 && ver[2] <= M17NLIB_PATCH_LEVEL))));
617 register_database (MSymbol tags[4],
618 void *(*loader) (MSymbol *, void *),
619 void *extra_info, enum MDatabaseStatus status)
622 MDatabaseInfo *db_info;
626 if (! mdatabase__list)
627 mdatabase__list = mplist ();
629 for (i = 0, plist = mdatabase__list; i < 4; i++)
631 MPlist *pl = mplist__assq (plist, tags[i]);
634 pl = MPLIST_PLIST (pl);
638 mplist_add (pl, Msymbol, tags[i]);
639 mplist_push (plist, Mplist, pl);
640 M17N_OBJECT_UNREF (pl);
642 plist = MPLIST_NEXT (pl);
645 if (MPLIST_TAIL_P (plist))
647 MSTRUCT_MALLOC (mdb, MERROR_DB);
648 for (i = 0; i < 4; i++)
649 mdb->tag[i] = tags[i];
650 mdb->loader = loader;
651 if (loader == load_database)
653 MSTRUCT_CALLOC (db_info, MERROR_DB);
654 mdb->extra_info = db_info;
659 mdb->extra_info = extra_info;
661 mplist_push (plist, Mt, mdb);
665 mdb = MPLIST_VAL (plist);
666 if (loader == load_database)
667 db_info = mdb->extra_info;
674 db_info->status = status;
675 if (! db_info->filename
676 || strcmp (db_info->filename, (char *) extra_info) != 0)
678 if (db_info->filename)
679 free (db_info->filename);
680 if (db_info->absolute_filename
681 && db_info->filename != db_info->absolute_filename)
682 free (db_info->absolute_filename);
683 db_info->filename = strdup ((char *) extra_info);
684 db_info->len = strlen ((char *) extra_info);
687 if (db_info->filename[0] == PATH_SEPARATOR)
688 db_info->absolute_filename = db_info->filename;
690 db_info->absolute_filename = NULL;
693 if (mdb->tag[0] == Mchar_table
694 && mdb->tag[2] != Mnil
695 && (mdb->tag[1] == Mstring || mdb->tag[1] == Mtext
696 || mdb->tag[1] == Msymbol || mdb->tag[1] == Minteger
697 || mdb->tag[1] == Mplist))
698 mchar__define_prop (mdb->tag[2], mdb->tag[1], mdb);
703 register_databases_in_files (MSymbol tags[4], glob_t *globbuf, int headlen)
706 MPlist *load_key = mplist ();
710 for (i = 0; i < globbuf->gl_pathc; i++)
712 if (! (fp = fopen (globbuf->gl_pathv[i], "r")))
714 plist = mplist__from_file (fp, load_key);
718 if (MPLIST_PLIST_P (plist))
723 for (j = 0, pl = MPLIST_PLIST (plist); j < 4 && MPLIST_SYMBOL_P (pl);
724 j++, pl = MPLIST_NEXT (pl))
725 tags2[j] = MPLIST_SYMBOL (pl);
728 for (j = 0; j < 4; j++)
729 if (tags[j] == Masterisk ? tags2[j] == Mnil
730 : (tags[j] != Mnil && tags[j] != tags2[j]))
734 MText *version = NULL;
737 version = MPLIST_MTEXT_P (pl) ? MPLIST_MTEXT (pl) : NULL;
738 if (! version || check_version (version))
739 register_database (tags2, load_database,
740 globbuf->gl_pathv[i] + headlen,
744 M17N_OBJECT_UNREF (plist);
746 M17N_OBJECT_UNREF (load_key);
752 /** List of database directories. */
753 MPlist *mdatabase__dir_list;
758 MDatabaseInfo *dir_info;
761 Mchar_table = msymbol ("char-table");
762 Masterisk = msymbol ("*");
764 mdatabase__dir_list = mplist ();
765 /** The macro M17NDIR specifies a directory where the system-wide
766 MDB_DIR file exists. */
767 mplist_set (mdatabase__dir_list, Mt, get_dir_info (M17NDIR));
769 /* The variable mdatabase_dir specifies a directory where an
770 application program specific MDB_DIR file exists. */
771 if (mdatabase_dir && strlen (mdatabase_dir) > 0)
772 mplist_push (mdatabase__dir_list, Mt, get_dir_info (mdatabase_dir));
774 /* The environment variable M17NDIR specifies a directory where a
775 user specific MDB_DIR file exists. */
776 path = getenv ("M17NDIR");
777 if (path && strlen (path) > 0)
778 mplist_push (mdatabase__dir_list, Mt, get_dir_info (path));
781 /* If the env var M17NDIR is not set, check "~/.m17n.d". */
782 char *home = getenv ("HOME");
786 && (len = strlen (home))
787 && (path = alloca (len + 9)))
790 if (path[len - 1] != PATH_SEPARATOR)
791 path[len++] = PATH_SEPARATOR;
792 strcpy (path + len, ".m17n.d");
793 dir_info = get_dir_info (path);
794 mplist_push (mdatabase__dir_list, Mt, dir_info);
797 mplist_push (mdatabase__dir_list, Mt, get_dir_info (NULL));
800 mdatabase__finder = ((void *(*) (MSymbol, MSymbol, MSymbol, MSymbol))
802 mdatabase__loader = (void *(*) (void *)) mdatabase_load;
804 mdatabase__list = mplist ();
805 mdatabase__update ();
810 mdatabase__fini (void)
812 MPlist *plist, *p0, *p1, *p2, *p3;
814 MPLIST_DO (plist, mdatabase__dir_list)
815 free_db_info (MPLIST_VAL (plist));
816 M17N_OBJECT_UNREF (mdatabase__dir_list);
818 /* MDATABASE_LIST ::= ((TAG0 (TAG1 (TAG2 (TAG3 t:MDB) ...) ...) ...) ...) */
819 MPLIST_DO (plist, mdatabase__list)
821 p0 = MPLIST_PLIST (plist);
822 /* P0 ::= (TAG0 (TAG1 (TAG2 (TAG3 t:MDB) ...) ...) ...) */
823 MPLIST_DO (p0, MPLIST_NEXT (p0))
825 p1 = MPLIST_PLIST (p0);
826 /* P1 ::= (TAG1 (TAG2 (TAG3 t:MDB) ...) ...) */
827 MPLIST_DO (p1, MPLIST_NEXT (p1))
829 p2 = MPLIST_PLIST (p1);
830 /* P2 ::= (TAG2 (TAG3 t:MDB) ...) */
831 MPLIST_DO (p2, MPLIST_NEXT (p2))
835 p3 = MPLIST_PLIST (p2); /* P3 ::= (TAG3 t:MDB) */
836 p3 = MPLIST_NEXT (p3);
837 mdb = MPLIST_VAL (p3);
838 if (mdb->loader == load_database)
839 free_db_info (mdb->extra_info);
845 M17N_OBJECT_UNREF (mdatabase__list);
849 mdatabase__update (void)
851 MPlist *plist, *p0, *p1, *p2, *p3;
852 char path[PATH_MAX + 1];
853 MDatabaseInfo *dir_info;
857 /* Update elements of mdatabase__dir_list. */
858 MPLIST_DO (plist, mdatabase__dir_list)
860 dir_info = MPLIST_VAL (plist);
861 if (dir_info->filename)
863 if (stat (dir_info->filename, &statbuf) == 0
864 && (statbuf.st_mode & S_IFDIR))
866 if (dir_info->time < statbuf.st_mtime)
869 dir_info->time = statbuf.st_mtime;
871 if (GEN_PATH (path, dir_info->filename, dir_info->len,
872 MDB_DIR, MDB_DIR_LEN)
873 && stat (path, &statbuf) >= 0
874 && dir_info->time < statbuf.st_mtime)
877 dir_info->time = statbuf.st_mtime;
879 dir_info->status = MDB_STATUS_UPDATED;
883 if (dir_info->status != MDB_STATUS_DISABLED)
887 dir_info->status = MDB_STATUS_DISABLED;
896 /* At first, mark all databases defined automatically from mdb.dir
897 file(s) as "disabled". */
898 MPLIST_DO (plist, mdatabase__list)
900 p0 = MPLIST_PLIST (plist);
901 /* P0 ::= (TAG0 (TAG1 (TAG2 (TAG3 MDB) ...) ...) ...) */
902 MPLIST_DO (p0, MPLIST_NEXT (p0))
904 p1 = MPLIST_PLIST (p0);
905 MPLIST_DO (p1, MPLIST_NEXT (p1))
907 p2 = MPLIST_PLIST (p1);
908 MPLIST_DO (p2, MPLIST_NEXT (p2))
911 MDatabaseInfo *db_info;
913 p3 = MPLIST_PLIST (p2);
914 p3 = MPLIST_NEXT (p3);
915 mdb = MPLIST_VAL (p3);
916 db_info = mdb->extra_info;
917 if (db_info->status == MDB_STATUS_AUTO)
918 db_info->status = MDB_STATUS_DISABLED;
925 MPLIST_DO (p0, mdatabase__dir_list)
926 mplist_push (plist, MPLIST_KEY (p0), MPLIST_VAL (p0));
928 while (! MPLIST_TAIL_P (plist))
930 MDatabaseInfo *dir_info = mplist_pop (plist);
935 if (dir_info->status == MDB_STATUS_DISABLED)
937 if (! GEN_PATH (path, dir_info->filename, dir_info->len,
938 MDB_DIR, MDB_DIR_LEN))
940 if (! (fp = fopen (path, "r")))
942 pl = mplist__from_file (fp, NULL);
952 int with_wildcard = 0;
954 if (! MPLIST_PLIST_P (p))
956 for (i = 0, p1 = MPLIST_PLIST (p); i < 4 && MPLIST_SYMBOL_P (p1);
957 i++, p1 = MPLIST_NEXT (p1))
958 with_wildcard |= ((tags[i] = MPLIST_SYMBOL (p1)) == Masterisk);
960 || tags[0] == Masterisk
961 || ! MPLIST_MTEXT_P (p1))
965 mt = MPLIST_MTEXT (p1);
966 nbytes = mtext_nbytes (mt);
967 if (nbytes > PATH_MAX)
969 memcpy (path, MTEXT_DATA (mt), nbytes);
976 if (tags[0] == Mchar_table || tags[0] == Mcharset)
978 if (path[0] == PATH_SEPARATOR)
980 if (glob (path, GLOB_NOSORT, NULL, &globbuf))
982 register_databases_in_files (tags, &globbuf, 0);
986 MPLIST_DO (dlist, mdatabase__dir_list)
988 MDatabaseInfo *d_info = MPLIST_VAL (dlist);
990 if (d_info->status == MDB_STATUS_DISABLED)
992 if (! GEN_PATH (path, d_info->filename, d_info->len,
993 MTEXT_DATA (mt), nbytes))
995 if (glob (path, GLOB_NOSORT, NULL, &globbuf))
997 register_databases_in_files (tags, &globbuf, d_info->len);
1003 MText *version = NULL;
1006 version = MPLIST_MTEXT_P (pl) ? MPLIST_MTEXT (pl) : NULL;
1007 if (! version || check_version (version))
1008 register_database (tags, load_database, path, MDB_STATUS_AUTO);
1011 M17N_OBJECT_UNREF (pl);
1016 mdatabase__load_for_keys (MDatabase *mdb, MPlist *keys)
1018 int mdebug_mask = MDEBUG_DATABASE;
1019 MDatabaseInfo *db_info;
1025 if (mdb->loader != load_database
1026 || mdb->tag[0] == Mchar_table
1027 || mdb->tag[0] == Mcharset)
1028 MERROR (MERROR_DB, NULL);
1029 MDEBUG_PRINT1 (" [DB] <%s>.\n",
1030 gen_database_name (name, mdb->tag));
1031 db_info = mdb->extra_info;
1032 filename = get_database_file (db_info, NULL);
1033 if (! filename || ! (fp = fopen (filename, "r")))
1034 MERROR (MERROR_DB, NULL);
1035 plist = mplist__from_file (fp, keys);
1041 /* Check if the database MDB should be reloaded or not. It returns:
1043 1: The database has not been updated since it was loaded last
1046 0: The database has never been loaded or has been updated
1047 since it was loaded last time.
1049 -1: The database is not loadable at the moment. */
1052 mdatabase__check (MDatabase *mdb)
1054 MDatabaseInfo *db_info = (MDatabaseInfo *) mdb->extra_info;
1057 if (! get_database_file (db_info, &buf))
1059 if (db_info->time < buf.st_mtime)
1061 if (db_info->status == MDB_STATUS_AUTO
1062 && db_info->filename != db_info->absolute_filename)
1066 mdatabase__update ();
1067 new = find_database (mdb->tag);
1075 /* Search directories in mdatabase__dir_list for file FILENAME. If
1076 the file exist, return the absolute pathname. If FILENAME is
1077 already absolute, return a copy of it. */
1080 mdatabase__find_file (char *filename)
1083 MDatabaseInfo db_info;
1085 if (filename[0] == PATH_SEPARATOR)
1086 return (stat (filename, &buf) == 0 ? filename : NULL);
1087 db_info.filename = filename;
1088 db_info.len = strlen (filename);
1090 db_info.absolute_filename = NULL;
1091 if (! get_database_file (&db_info, &buf)
1092 || stat (db_info.absolute_filename, &buf) < 0)
1094 return db_info.absolute_filename;
1098 mdatabase__file (MDatabase *mdb)
1100 MDatabaseInfo *db_info;
1102 if (mdb->loader != load_database)
1104 db_info = mdb->extra_info;
1105 return get_database_file (db_info, NULL);
1109 mdatabase__lock (MDatabase *mdb)
1111 MDatabaseInfo *db_info;
1117 if (mdb->loader != load_database)
1119 db_info = mdb->extra_info;
1120 if (db_info->lock_file)
1122 file = get_database_file (db_info, NULL);
1125 len = strlen (file);
1126 db_info->uniq_file = malloc (len + 35);
1127 if (! db_info->uniq_file)
1129 db_info->lock_file = malloc (len + 5);
1130 if (! db_info->lock_file)
1132 free (db_info->uniq_file);
1135 sprintf (db_info->uniq_file, "%s.%X.%X", db_info->absolute_filename,
1136 (unsigned) time (NULL), (unsigned) getpid ());
1137 sprintf (db_info->lock_file, "%s.LCK", db_info->absolute_filename);
1139 fp = fopen (db_info->uniq_file, "w");
1142 char *str = strdup (db_info->uniq_file);
1143 char *dir = dirname (str);
1145 if (stat (dir, &buf) == 0
1146 || mkdir (dir, 0777) < 0
1147 || ! (fp = fopen (db_info->uniq_file, "w")))
1149 free (db_info->uniq_file);
1150 free (db_info->lock_file);
1151 db_info->lock_file = NULL;
1158 if (link (db_info->uniq_file, db_info->lock_file) < 0
1159 && (stat (db_info->uniq_file, &buf) < 0
1160 || buf.st_nlink != 2))
1162 unlink (db_info->uniq_file);
1163 unlink (db_info->lock_file);
1164 free (db_info->uniq_file);
1165 free (db_info->lock_file);
1166 db_info->lock_file = NULL;
1173 mdatabase__save (MDatabase *mdb, MPlist *data)
1175 MDatabaseInfo *db_info;
1181 if (mdb->loader != load_database)
1183 db_info = mdb->extra_info;
1184 if (! db_info->lock_file)
1186 file = get_database_file (db_info, NULL);
1190 if (mplist__serialize (mt, data, 1) < 0)
1192 M17N_OBJECT_UNREF (mt);
1195 fp = fopen (db_info->uniq_file, "w");
1198 M17N_OBJECT_UNREF (mt);
1201 mconv_encode_stream (msymbol ("utf-8"), mt, fp);
1202 M17N_OBJECT_UNREF (mt);
1204 if ((ret = rename (db_info->uniq_file, file)) < 0)
1205 unlink (db_info->uniq_file);
1206 free (db_info->uniq_file);
1207 db_info->uniq_file = NULL;
1212 mdatabase__unlock (MDatabase *mdb)
1214 MDatabaseInfo *db_info;
1216 if (mdb->loader != load_database)
1218 db_info = mdb->extra_info;
1219 if (! db_info->lock_file)
1221 unlink (db_info->lock_file);
1222 free (db_info->lock_file);
1223 db_info->lock_file = NULL;
1224 if (db_info->uniq_file)
1226 unlink (db_info->uniq_file);
1227 free (db_info->uniq_file);
1233 #endif /* !FOR_DOXYGEN || DOXYGEN_INTERNAL_MODULE */
1238 /*** @addtogroup m17nDatabase */
1243 @brief Directory for application specific data.
1245 If an application program wants to provide a data specific to the
1246 program or a data overriding what supplied by the m17n database,
1247 it must set this variable to a name of directory that contains the
1248 data files before it calls the macro M17N_INIT (). The directory
1249 may contain a file "mdb.dir" which contains a list of data
1250 definitions in the format described in @ref mdbDir "mdbDir(5)".
1252 The default value is NULL. */
1254 @brief ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¸ÇͤΥǡ¼¥¿Íѥǥ£¥ì¥¯¥È¥ê.
1256 ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤¬¡¢¤½¤Î¥×¥í¥°¥é¥à¸ÇͤΥǡ¼¥¿¤ä m17n
1257 ¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò¾å½ñ¤¤¹¤ë¥Ç¡¼¥¿¤òÄ󶡤¹¤ë¾ì¹ç¤Ë¤Ï¡¢¥Þ¥¯¥í M17N_INIT ()
1258 ¤ò¸Æ¤ÖÁ°¤Ë¤³¤ÎÊÑ¿ô¤ò¥Ç¡¼¥¿¥Õ¥¡¥¤¥ë¤ò´Þ¤à¥Ç¥£¥ì¥¯¥È¥ê̾¤Ë¥»¥Ã¥È¤·¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¥Ç¥£¥ì¥¯¥È¥ê¤Ë¤Ï
1259 "mdb.dir" ¥Õ¥¡¥¤¥ë¤ò¤ª¤¯¤³¤È¤¬¤Ç¤¤ë¡£¤½¤Î"mdb.dir"¥Õ¥¡¥¤¥ë¤Ë¤Ï¡¢
1260 @ref mdbDir "mdbDir(5)" ¤ÇÀâÌÀ¤µ¤ì¤Æ¤¤¤ë¥Õ¥©¡¼¥Þ¥Ã¥È¤Ç¥Ç¡¼¥¿ÄêµÁ¤Î¥ê¥¹¥È¤òµ½Ò¤¹¤ë¡£
1262 ¥Ç¥Õ¥©¥ë¥È¤ÎÃÍ¤Ï NULL ¤Ç¤¢¤ë¡£ */
1264 char *mdatabase_dir;
1268 @brief Look for a data in the database.
1270 The mdatabase_find () function searches the m17n database for a
1271 data who has tags $TAG0 through $TAG3, and returns a pointer to
1272 the data. If such a data is not found, it returns @c NULL. */
1275 @brief ¥Ç¡¼¥¿¥Ù¡¼¥¹Ãæ¤Î¥Ç¡¼¥¿¤òõ¤¹.
1277 ´Ø¿ô mdatabase_find () ¤Ï¡¢ m17n ¸À¸ì¾ðÊó¥Ù¡¼¥¹Ãæ¤Ç $TAG0 ¤«¤é
1278 $TAG3 ¤Þ¤Ç¤Î¥¿¥°¤ò»ý¤Ä¥Ç¡¼¥¿¤òõ¤·¡¢¤½¤ì¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£¤½¤Î¤è¤¦¤Ê¥Ç¡¼¥¿¤¬¤Ê¤±¤ì¤Ð
1281 @latexonly \IPAlabel{mdatabase_find} @endlatexonly */
1284 mdatabase_find (MSymbol tag0, MSymbol tag1, MSymbol tag2, MSymbol tag3)
1288 mdatabase__update ();
1289 tags[0] = tag0, tags[1] = tag1, tags[2] = tag2, tags[3] = tag3;
1290 return find_database (tags);
1295 @brief Return a data list of the m17n database.
1297 The mdatabase_list () function searches the m17n database for data
1298 who have tags $TAG0 through $TAG3, and returns their list by a
1299 plist. The value #Mnil in $TAGn means a wild card that matches
1300 any tag. Each element of the plist has key #Mt and value a
1301 pointer to type #MDatabase. */
1303 @brief m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Î¥Ç¡¼¥¿¥ê¥¹¥È¤òÊÖ¤¹.
1305 ´Ø¿ô mdatabase_list () ¤Ï m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹Ã椫¤é $TAG0 ¤«¤é$TAG3
1306 ¤Þ¤Ç¤Î¥¿¥°¤ò»ý¤Ä¥Ç¡¼¥¿¤òõ¤·¡¢¤½¤Î¥ê¥¹¥È¤òplist ¤È¤·¤ÆÊÖ¤¹¡£ $TAGn ¤¬ #Mnil
1307 ¤Ç¤¢¤Ã¤¿¾ì¹ç¤Ë¤Ï¡¢Ç¤°Õ¤Î¥¿¥°¤Ë¥Þ¥Ã¥Á¤¹¤ë¥ï¥¤¥ë¥É¥«¡¼¥É¤È¤·¤Æ¼è¤ê°·¤ï¤ì¤ë¡£ÊÖ¤µ¤ì¤ë
1308 plist ¤Î³ÆÍ×ÁǤϥ¡¼ ¤È¤·¤Æ #Mt ¤ò¡¢ÃͤȤ·¤Æ #MDatabase ·¿¤Ø¤Î¥Ý¥¤¥ó¥¿¤ò»ý¤Ä¡£ */
1311 mdatabase_list (MSymbol tag0, MSymbol tag1, MSymbol tag2, MSymbol tag3)
1313 MPlist *plist = mplist (), *pl = plist;
1314 MPlist *p, *p0, *p1, *p2, *p3;
1316 mdatabase__update ();
1318 MPLIST_DO (p, mdatabase__list)
1320 p0 = MPLIST_PLIST (p);
1321 /* P0 ::= (TAG0 (TAG1 (TAG2 (TAG3 MDB) ...) ...) ...) */
1322 if (tag0 != Mnil && MPLIST_SYMBOL (p0) != tag0)
1324 MPLIST_DO (p0, MPLIST_NEXT (p0))
1326 p1 = MPLIST_PLIST (p0);
1327 if (tag1 != Mnil && MPLIST_SYMBOL (p1) != tag1)
1329 MPLIST_DO (p1, MPLIST_NEXT (p1))
1331 p2 = MPLIST_PLIST (p1);
1332 if (tag2 != Mnil && MPLIST_SYMBOL (p2) != tag2)
1334 MPLIST_DO (p2, MPLIST_NEXT (p2))
1336 p3 = MPLIST_PLIST (p2);
1337 if (tag3 != Mnil && MPLIST_SYMBOL (p3) != tag3)
1339 p3 = MPLIST_NEXT (p3);
1340 pl = mplist_add (pl, Mt, MPLIST_VAL (p3));
1345 if (MPLIST_TAIL_P (plist))
1347 M17N_OBJECT_UNREF (plist);
1355 @brief Define a data of the m17n database.
1357 The mdatabase_define () function defines a data that has tags
1358 $TAG0 through $TAG3 and additional information $EXTRA_INFO.
1360 $LOADER is a pointer to a function that loads the data from the
1361 database. This function is called from the mdatabase_load ()
1362 function with the two arguments $TAGS and $EXTRA_INFO. Here,
1363 $TAGS is the array of $TAG0 through $TAG3.
1365 If $LOADER is @c NULL, the default loader of the m17n library is
1366 used. In this case, $EXTRA_INFO must be a string specifying a
1367 filename that contains the data.
1370 If the operation was successful, mdatabase_define () returns a
1371 pointer to the defined data, which can be used as an argument to
1372 mdatabase_load (). Otherwise, it returns @c NULL. */
1375 @brief m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Î¥Ç¡¼¥¿¤òÄêµÁ¤¹¤ë.
1377 ´Ø¿ô mdatabase_define () ¤Ï $TAG0 ¤«¤é $TAG3 ¤Þ¤Ç¤Î¥¿¥°¤ª¤è¤ÓÉղþðÊó
1378 $EXTRA_INFO ¤ò»ý¤Ä¥Ç¡¼¥¿¤òÄêµÁ¤¹¤ë¡£
1380 $LOADER ¤Ï¤½¤Î¥Ç¡¼¥¿¤Î¥í¡¼¥É¤ËÍѤ¤¤é¤ì¤ë´Ø¿ô¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¤¢¤ë¡£¤³¤Î´Ø¿ô¤Ï
1381 mdatabase_load () ¤«¤é $TAGS ¤È $EXTRA_INFO ¤È¤¤¤¦Æó¤Ä¤Î°ú¿ôÉÕ¤¤Ç¸Æ¤Ó½Ð¤µ¤ì¤ë¡£¤³¤³¤Ç
1382 $TAGS ¤Ï $TAG0 ¤«¤é $TAG3 ¤Þ¤Ç¤ÎÇÛÎó¤Ç¤¢¤ë¡£
1384 ¤â¤· $LOADER ¤¬ @c NULL ¤Ê¤é¡¢m17n ¥é¥¤¥Ö¥é¥êɸ½à¤Î¥í¡¼¥À¤¬»È¤ï¤ì¤ë¡£¤³¤Î¾ì¹ç¤Ë¤Ï
1385 $EXTRA_INFO ¤Ï¥Ç¡¼¥¿¤ò´Þ¤à¥Õ¥¡¥¤¥ë̾¤Ç¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£
1388 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð mdatabase_define ()
1389 ¤ÏÄêµÁ¤µ¤ì¤¿¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£¤³¤Î¥Ý¥¤¥ó¥¿¤Ï´Ø¿ô mdatabase_load ()
1390 ¤Î°ú¿ô¤È¤·¤ÆÍѤ¤¤ë¤³¤È¤¬¤Ç¤¤ë¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð @c NULL ¤òÊÖ¤¹¡£
1392 @latexonly \IPAlabel{mdatabase_define} @endlatexonly */
1396 mdatabase_load (), mdatabase_define () */
1399 mdatabase_define (MSymbol tag0, MSymbol tag1, MSymbol tag2, MSymbol tag3,
1400 void *(*loader) (MSymbol *, void *),
1406 tags[0] = tag0, tags[1] = tag1, tags[2] = tag2, tags[3] = tag3;
1408 loader = load_database;
1409 mdb = register_database (tags, loader, extra_info, MDB_STATUS_EXPLICIT);
1415 @brief Load a data from the database.
1417 The mdatabase_load () function loads a data specified in $MDB and
1418 returns the contents. The type of contents depends on the type of
1421 If the data is of the @e plist @e type, this function returns a
1422 pointer to @e plist.
1424 If the database is of the @e chartable @e type, it returns a
1425 chartable. The default value of the chartable is set according to
1426 the second tag of the data as below:
1428 @li If the tag is #Msymbol, the default value is #Mnil.
1429 @li If the tag is #Minteger, the default value is -1.
1430 @li Otherwise, the default value is @c NULL.
1432 If the data is of the @e charset @e type, it returns a plist of length 2
1433 (keys are both #Mt). The value of the first element is an array
1434 of integers that maps code points to the corresponding character
1435 codes. The value of the second element is a chartable of integers
1436 that does the reverse mapping. The charset must be defined in
1441 @brief ¥Ç¡¼¥¿¥Ù¡¼¥¹¤«¤é¥Ç¡¼¥¿¤ò¥í¡¼¥É¤¹¤ë.
1443 ´Ø¿ô mdatabase_load () ¤Ï $MDB
1444 ¤¬»Ø¤¹¥Ç¡¼¥¿¤ò¥í¡¼¥É¤·¡¢¤½¤ÎÃæ¿È¤òÊÖ¤¹¡£ÊÖ¤µ¤ì¤ë¤â¤Î¤Ï¥Ç¡¼¥¿¤Î¥¿¥¤¥×¤Ë¤è¤Ã¤Æ°Û¤Ê¤ë¡£
1446 ¥Ç¡¼¥¿¤¬ @e plist¥¿¥¤¥× ¤Ê¤é¤Ð¡¢ @e plist ¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£
1448 ¥Ç¡¼¥¿¤¬ @e chartable¥¿¥¤¥× ¤Ê¤é¤Ðʸ»ú¥Æ¡¼¥Ö¥ë¤òÊÖ¤¹¡£
1449 ʸ»ú¥Æ¡¼¥Ö¥ë¤Î¥Ç¥Õ¥©¥ë¥ÈÃͤϡ¢¥Ç¡¼¥¿¤ÎÂè2¥¿¥°¤Ë¤è¤Ã¤Æ°Ê²¼¤Î¤è¤¦¤Ë·è¤Þ¤ë¡£
1451 @li ¥¿¥°¤¬ #Msymbol ¤Ê¤é¡¢¥Ç¥Õ¥©¥ë¥ÈÃÍ¤Ï #Mnil
1452 @li ¥¿¥°¤¬ #Minteger ¤Ê¤é¡¢¥Ç¥Õ¥©¥ë¥ÈÃÍ¤Ï -1
1453 @li ¤½¤ì°Ê³°¤Ê¤é¡¢¥Ç¥Õ¥©¥ë¥ÈÃÍ¤Ï @c NULL
1455 ¥Ç¡¼¥¿¤¬ @e charset¥¿¥¤¥× ¤Ê¤é¤ÐŤµ 2 ¤Î plist ¤òÊÖ¤¹¡Ê¥¡¼¤Ï¶¦¤Ë#Mt ¡Ë¡£
1456 ºÇ½é¤ÎÍ×ÁǤÎÃͤϥ³¡¼¥É¥Ý¥¤¥ó¥È¤òÂбþ¤¹¤ëʸ»ú¥³¡¼¥É¤Ë¥Þ¥Ã¥×¤¹¤ëÀ°¿ô¤ÎÇÛÎó¤Ç¤¢¤ë¡£
1457 £²ÈÖÌܤÎÍ×ÁǤÎÃͤϵդΥޥåפò¤¹¤ëʸ»ú¥Æ¡¼¥Ö¥ë¤Ç¤¢¤ë¡£
1458 ¤³¤Îʸ»ú¥»¥Ã¥È¤Ïͽ¤áÄêµÁ¤µ¤ì¤Æ¤¤¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
1460 @latexonly \IPAlabel{mdatabase_load} @endlatexonly
1465 mdatabase_load (), mdatabase_define () */
1468 mdatabase_load (MDatabase *mdb)
1470 return (*mdb->loader) (mdb->tag, mdb->extra_info);
1475 @brief Get tags of a data.
1477 The mdatabase_tag () function returns an array of tags (symbols)
1478 that identify the data in $MDB. The length of the array is
1482 @brief ¥Ç¡¼¥¿¤Î¥¿¥°¤òÆÀ¤ë.
1484 ´Ø¿ô mdatabase_tag () ¤Ï¡¢¥Ç¡¼¥¿ $MDB ¤Î¥¿¥°¡Ê¥·¥ó¥Ü¥ë¡Ë¤ÎÇÛÎó¤òÊÖ¤¹¡£ÇÛÎó¤ÎŤµ¤Ï
1487 @latexonly \IPAlabel{mdatabase_tag} @endlatexonly */
1490 mdatabase_tag (MDatabase *mdb)